Agent Skills packaged as extensions/plugins for Junie, Codex, and Claude Code.
Installing the plugins is non-destructive: Junie, Claude Code, and Codex install into isolated extension/plugin caches instead of copying into your personal skills directories.
kortex- Kotlin development skills for Kotlin Toolchain,.main.ktsscripts, Kotlin/JVM, Multiplatform, and related build workflows.heapy- Personal skills and Heapy package skills for projects such askomok,kinetica, and related workflows.
Codex
codex plugin marketplace add Heapy/kortex
codex plugin add kortex@kortex
codex plugin add heapy@kortex
Claude Code
/plugin marketplace add Heapy/kortex
/plugin install kortex@kortex
/plugin install heapy@kortex
Junie
/extensions marketplace add Heapy/kortex
/extensions install kortex
/extensions install heapy
Codex
$kortex:kotlin-toolchain convert current project to Kotlin Toolchain
$kortex:main-kts create an executable Kotlin script that fetches a URL and prints the response
$kortex:modern-kotlin rewrite this service using context parameters and guard conditions
$heapy:fix-issues fix issue #123 and verify the change
Claude Code
/kortex:kotlin-toolchain create a setup for a Kotlin Native CLI application
/kortex:main-kts create an executable Kotlin script that parses a CSV and prints a summary
/kortex:modern-kotlin which experimental flags do I need for collection literals in 2.4
/heapy:fix-issues resolve the failing CI check
Junie
Use the kotlin-toolchain skill to create a setup for a Kotlin Native CLI application
Use the main-kts skill to create an executable Kotlin script that calls an HTTP API
Use the modern-kotlin skill to modernize this code for Kotlin 2.4
Use the fix-issues skill to reproduce and fix this bug